Update flake8 from 3.9.2 to 4.0.1
Update flake8 from 3.9.2 to 4.0.1
trungdong/cookiecutter-django,ryankanno/cookiecutter-django,ryankanno/cookiecutter-django,trungdong/cookiecutter-django,pydanny/cookiecutter-django,pydanny/cookiecutter-django,trungdong/cookiecutter-django,pydanny/cookiecutter-django,ryankanno/cookiecutter-django,ryankanno/cookiecutter-django,pydanny/cookiecutter-django,trungdong/cookiecutter-django